Method and apparatus for supplying preset quantities of liquids

Details Method and apparatus for supplying preset quantities of liquids Method and apparatus for supplying preset quantities of liquids

1992-12-18

1995-07-18

Kashnikow, Andres

Dispensing

Processes of dispensing

222 14, 222 71, B67D 516

Patent

active

054333423

ABSTRACT:
Method and apparatus for supplying a preset quantity of a liquid, using a tank containing the liquid, a check valve distributor, and a hose connecting the tank to the check valve distributor, and having a pumping unit, a solenoid valve, and a pulsed flow meter interposed between the tank and the check valve distributor, including determining a volume difference between a first quantity delivered by the apparatus and a first quantity detected by pulsed flow meter, as the liquid is pumped at constant flow rate, low pressure and under laminar flow, during a first delivery of the liquid; starting a subsequent delivery of the preset quantity of the liquid, by opening the solenoid valve; and stopping the subsequent delivery of the preset quantity of the liquid when a difference between the number of pulses generated by the pulsed flow meter corresponding with the preset quantity, and the number of pulses output by the pulsed flow meter reaches a number of pulses corresponding to the volume difference; and during a subsequent delivery, the liquid flows inside the hose at a same constant flow rate, under a low pressure, and under laminar flow, as during the first delivery of the liquid.

REFERENCES:
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patent: 4726492 (1988-02-01), Komukai
patent: 4927056 (1990-05-01), Glover
patent: 5024347 (1991-06-01), Baldwin

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